223155457 has 8 divisors (see below), whose sum is σ = 260240000. Its totient is φ = 191275812.

The previous prime is 223155421. The next prime is 223155463. The reversal of 223155457 is 754551322.

It is a de Polignac number, because none of the positive numbers 2^k-223155457 is a prime.

It is a super-3 number, since 3×223155457³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223155857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324957 + ... + 325642.

It is an arithmetic number, because the mean of its divisors is an integer number (32530000).

Almost surely, 2^223155457 is an apocalyptic number.

It is an amenable number.

223155457 is a deficient number, since it is larger than the sum of its proper divisors (37084543).

223155457 is an frugal number, since it uses more digits than its factorization.

223155457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650620 (or 650606 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 223155457 is about 14938.3887015970. The cubic root of 223155457 is about 606.5535801705.

It can be divided in two parts, 22315 and 5457, that added together give a palindrome (27772).

The spelling of 223155457 in words is "two hundred twenty-three million, one hundred fifty-five thousand, four hundred fifty-seven".